Improvement in cultivators



J. s. & I. ROWELL.

Cultivator-Teeth.

No. 56,102. Patented July 3. 1866.

. v 17122 77202 KZHGJY J UNITED STATES PATENLI OFFICE.

JOHN S. HOWELL AND IRA HOWELL, OF BEAVER DAM, WISCONSIN.

IMPROVEMENT IN, CULTIVATORS.

Specification forming part of Letters Patent No. 56,102, dated July 3,1866.

To all whom it may concern:

Be it known that we, JOHN S. Bowen. and IRA RowELL, of Beaver Dam, inthe county of Dodge and State of Wisconsin,'have invented a new anduseful Improvement in (Jultivators; and we do hereby declare thefollowing to be a full, clear, and exact description of the nature,construction, and operation of the same, reference being had to theaccompanying drawings, which are made a part of this specification, andin which the figure represents a perspective view of a cultivator-beamwith our invention applied.

Similar letters of reference indicate corresponding parts. I

Thisinvention consists in the application to the shank of a brace-bar,which is retained in position by a bolt, which passes transverselythrough the beam and binds against the curved edge of the brace-bar insuch a way as to hold the latter firmly in position as the tooth worksits waythrough the yielding soil, but so as to allow the shank to givebackward to enable the tooth to override immovable obstacles, a slotbeing formed in the beam to permit the brace to slide upward through thesame when the shank is forced backward by an obstacle.

The following description in detail will enable others skilled in theart to which our invention appertains to fully understand and use thesame.

In the drawing, A represents one of the beams of a cultivator; B, theshank, and B the tooth thereof; and O, a curved brace-bar. The upper endof the brace-bar O occupiesalongitudinal slot, at, in the beam A,an d abolt, D, passing transversely through the beam, binds against the frontedge of the brace-bar O and .the'brace-bar O. This arrangement preventsthe shank from breaking and enables the parts to be easily readjusted byhand; V

The bolt D may be fitted in a slot in the beam and provided with nuts bywhich to set it any desired position, to regulate its binding forceagainst the brace and adapt the shank to beadjusted forward or backwardfor deep or shallow cultivating.

The above-described arrangement may be cheaply applied, is of verysimple construction, and has been found more efl'ective practically thanother devices designed to operate in a similar way.

Having thus described our invention, the following is what we claim asnew and desire to secure by Letters Patent:

The combination of the slotted beam A,

shank B, brace-bar O, and bolt D, when the parts are constructed andarranged to operate as and for the purposes herein specified.

JOHN S. ROWELL. IRA HOWELL. Witnesses:

CLARK ELLIS, C. S. Snow.

